X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fglsl%2Fvalidate.cpp;h=8805d41fadf01655f7328b60e501ce8c3a8b73d4;hb=1476e64621ecbd7b17b00ae2c958322fd39918de;hp=1458d01eaaba8743d40e90bb9b030790dca3cad9;hpb=15562a0c458fd655b6907c285951085f38270e27;p=libs%2Fgl.git

diff --git a/source/glsl/validate.cpp b/source/glsl/validate.cpp
index 1458d01e..8805d41f 100644
--- a/source/glsl/validate.cpp
+++ b/source/glsl/validate.cpp
@@ -2,6 +2,7 @@
 #include <cstring>
 #include <msp/core/raii.h>
 #include <msp/strings/format.h>
+#include <msp/strings/utils.h>
 #include "validate.h"
 
 using namespace std;
@@ -239,7 +240,26 @@ void ReferenceValidator::visit(InterfaceBlockReference &iface)
 void ReferenceValidator::visit(FunctionCall &call)
 {
 	if(!call.declaration && !call.constructor)
-		error(call, format("Call to undeclared function '%s'", call.name));
+	{
+		map<string, FunctionDeclaration *>::iterator i = stage->functions.lower_bound(call.name);
+		if(i!=stage->functions.end() && i->second->name==call.name)
+		{
+			bool valid_types = true;
+			string signature;
+			for(NodeArray<Expression>::const_iterator j=call.arguments.begin(); (valid_types && j!=call.arguments.end()); ++j)
+			{
+				if((*j)->type)
+					append(signature, ", ", (*j)->type->name);
+				else
+					valid_types = false;
+			}
+
+			if(valid_types)
+				error(call, format("No matching overload found for call to '%s(%s)'", call.name, signature));
+		}
+		else
+			error(call, format("Call to undeclared function '%s'", call.name));
+	}
 	TraversingVisitor::visit(call);
 }